SlipX Solutions Blue Comfort Foam Shower Mat Feels Great on Tired Feet & Helps Prevent Slips (23" Diameter, Soft, Cushioned & Comfortable, Center Drain Hole) Made of high-quality PVC foam that delivers cushioned comfort underfoot. 24 strong, low profile suction cups connect to shower surface for reliable slip-resistance. Centered drain hole and perforated pattern drains water to prevent pooling. Machine washable for years of use. 23 Diameter: round shape covers many shower stall sizes.